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Cell Div. 2011 Nov 11;6:19. doi: 10.1186/1747-1028-6-19.

Crosstalk between NDR kinase pathways coordinates cell cycle dependent actin rearrangements.

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  • 1Department of Microbiology and Physiological Systems, and Program in Cell Dynamics, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA. dannel.mccollum@umassmed.edu.


Regulation of cytoskeletal remodeling is essential for cell cycle transitions. In fission yeast two NDR kinase signaling cascades, MOR and SIN, regulate the actin cytoskeleton to promote polarized growth during interphase and cytokinesis respectively. Our understanding of how these signaling pathways are coordinated to assist transition between the two cell-cycle stages is limited. Here, we review work from our laboratory, which reveals that cross talk between the SIN and MOR pathways is required for inhibition of interphase polarity programs during cytokinesis. Given the conservation of NDR kinase signaling pathways, our results may define general mechanisms by which these pathways are coordinated in higher organisms.

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